Motor-vehicle governor



April 21, 1931. w z 1,801,703

MOTOR VEHIOLE GOVERNOR Filed May '4. 1929 3 Sheets-Sheet l [n venior Aiiorney April 21, 1931. F. WELLNITZ MOTOR VEHICLE GOVERNOR Filed May 4. 1929 3 Sheets-Sheet 2 Ill In ventor Trad/LEA h elln/ '2? Attorney April 21, 1931. F. WELLNITZ MOTOR VEHICLE GOVERNOR Filed May 4. 1929 3 Sheets-Sheet 5 q wfii A tiorney I M d y a, u M f f 1 n M c m I 0 Q j v 7/ w m Q\\\\\\ fi Z l 7 V 4 I w W P w W w Patented Apr-. 21, 1931 UNITED STATES PATENT OFFICE FBEDRICH WELLNITZ, OI OCONTO FALLS, WISCONSIN MOTORVEHICLE GOVERNOR Application filed May 4, 1929. Serial No. 360,551.

[61 necessarily adapted for use in connection with automobile engines of the Ford type. Briefly stated, this governor 1s especially made to govern the Ford types of englnes, only, such as have been installed 1n Model T type constructed since 1919 This is atout of order.

speed is desirable.

tached to the timing gear casing and driven by the large timing gear, the same bolts to be used for securing the governor 1n place which are removed when the generator is taken off.

In carrying the invention into effect, I produce a governor of the type which 1s out of the way and cannot be caught 1n the clothing. It is of a simplified construction and composed of few working parts, not liable to get The governor is especially useful in maintaining a normal and substantially constant speed of the motor and 1s principally intended for use when the motor s employed as a stationary englne where uniform In other words, Ford engmes are used for farm purposes for driving various types of machinery such as wood saws and the like. This governor acts eflectively for maintaining the desired uniform speed to insure efiicient operating conditions.

In carrying the invention into effect, I have evolved and produced a novel structural arrangement of details, which cooperate in forming a structure which is efiicient 1n performance, positive and dependable in action, comparatively smooth and quiet in operation, and susceptible of fulfilling the requirements of an invention of this class 1n a highly satisfactory manner.

The specified details and th1s particular association and arrangement will become more readily apparent from the followmg description and drawings.

' In the drawings:

Figure 1 is a ragmentary side elevatlonal view showing the governor associated wlth the carburetor and engine.

Figure 2 is a top plan view of the structure seen in Figure 1.

Figure 3 is an enlarged horizontal long1- tudinal sectional view through the governor per se.

. Figure 4 is a vertical sectional view of the left hand end portion of the structure.

Figure 5 is an end view of the structure showing certain of the elements thereof in cross section.

Figure 6 is a transverse section taken ap- V proirimately on the line 66 of Figure 3.

- Figure 7 is a perspective view of the rod actuating disk.

Figure 8 is a sectional view taken through the longitudinally slidable bushing or sleeve upon which the disk illustrated in Figure 7 is mounted.

Referring to the drawings and particularly to Figure 1, it will be seen that 9 designates the carburetor and 10 the intake manifold, 11 the timing gear housing, 12 the improved governor which is attached to the housing 11; also in these figures I show the operating connection between the governor and the throttle valve of the carburetor. The throttle valve arm, as seen in Figure 2 is designated by the reference character 13 and a link 14 is connected therewith and with one arm of a bell crank 15 which is in turn pivotally mounted on a supported bracket 16, while connected to the oposite end of the bell crank lever is a reciprocatory wire rod 17 having a downturned end portion 18 which extends into and has operating connection with the internal mechanism of the governor. As before stated, the governor is intended to be mounted on the housing 11 instead of the usual generator to operate as a speed control for the engine when it is used for stationary power purposes.

The governor in accordance with the present invention comprises a cup shaped casing 19 having an attaching flange 20 which may be secured in place by the usual bolts which have been employed for attaching the generator to the block 11. The casing is provlded at its opposite ends with bearings for a driving shaft 20', as seen in Figure 3. This shaft is adapted to be driven from the large timing gear (not shown). It is' therefore provided with a toothed pinion 21, connected to the shaft by a fragile connecting pin 22.

- through the medium of the expansion coil spring 23. 1

The left hand end of the shaft 20 extends through the adjacent bearing 24 in the casing and abuts the intermediate portion of the yoke 25, which is fastened to this end of the casing. A pin 26 extends outwardly from the yoke 25 and is surrounded by a coil spring 27, which bears against the cross head 28 held in place by a retaining nut 29 on the threaded end of the pin.

This cross head as shown in Figure 5 is provided with a'pair of rods 30, which extend through openings in the yoke 25 and are adjacent end of the casing and connected with coil springs 31. The coil springs 31 are connected with diametrically opposite sides of a longitudinally slidable ring or disc 32. This ring is rigidly connected as by welding or soldering to the lower end portion of the extension 18 and is adapted to be held against rotation to permit it to slide back and forth. The casing is formed with slot 33 to permit this sliding mot-ion of the rod extension 18. As seen better in Figure 3, the ring 32 is loosely mounted on a bushing 35 having an end flange 34 thereon for engagement with said ring. As illustrated to advantage in Figure 8, the end portion of the bushing 35 remote from the flange 34 is provided with flat faces over certain of which extend in overlapping relation the adjacent, outwardly offset end portions of a pair of rigid longitudinally extending flat metallic strips 38 disposed on diametrically opposite sides of the shaft 20. The strips 38 are securely clamped to the bushing 35 through the medium of the apertured clips 37 and bolts 36. The opposite ends of the strips 38 are provided with right angularly disposed outwardly turned extensions 41, as seen in Figure 3. Adjacent the extension 41, the shaft 20' is provided, on diametrically opposite sides, with transversely extending grooves in which are seated intermediate portions of a pair of opposed transversely extending rigid metallic bars 39 rigidly secured together and embracing the adjacent end portions of the strips 38 therebetween. Ball supporting arms 40 are mounted for swinging movement on transverse pins extending between the outer end portions of the bars 39 and are provided with inturned extensions 42 for engagement with the strip extensions 41 The operation is such that when the timing gear meshes with the pinion 21, the shaft is set into rotation. This rotates the governor unit which includes the ball arms 40, bars 39, strips 38, and the bushing 35, etc. During this time, the disc 32 is held against rotation by the rods 30, springs 31 and the extension 18. Obviousl the centrifugal action of the governor works the disc 32 back and forth. Hence inasmuch as the extension 18 is connected therewith, it is obvious that this motion is transmitted to the control valve of the carbureter through the means of the parts, 13, 14, 15 and 17' also described. It will therefore be seen that I have evolved and produced a sim lified governor structure which is capable 0 being incorporated in a structure without requiring alterations of the existing details and that this structure fulfills the requirements of an invention of this class in a satisfactory manner to maintain a substantially uniform speed of the engine by controlling the fuel supply through the carbureter. It is thought, however, that persons skilled in the art to which the invention relates will be able to obtain a clear understanding of the same after considering the drawings and description. Therefore a more lengthy description is though to be unnecessary.

Minor changes in the shape, size and rearrangement of details coming within the field of invention claimed may be resorted to, in actual practice, if desired.

I claim:

1. A governor for internal combustion engines of the characterdescribed comprising a casing having a longitudinally extending slot therein, a longitudinally extendin shaft mounted for rotation in the casing aving operative connection with the engine, a bushing mounted for longitudinal sliding movement on the shaft, a disk loosely mountedon the bushing for longitudinal movement therewith, said bushing having fiat side portions adjacent the disk, rigid metallic strips disposed longitudinally on diametrically opposite sides of the shaft having ofiset end portions extending over the flat side portion of the bushing, means for rigidly clamping the strips to the bushing, the opposite ends of the strips having right angular, outwardly turned extensions, a pair of parallel, transversely extending bars rigidly mounted on opposite sides of the shaft and embracing the adjacent end portions of the strips therebetween, weighted arms swingingly mounted between the bars adjacent their free ends and having angular extensions engageable with the strip extensions for shifting the strips, bushing and the disk longitudinally on the shaft and the rod rigidly connected to the disk and extending through the slot in the casing and operatively connected to the engine carburetor throttle arm.

2. A overnor for internal combustion engines o the character described comprising a. casing, a shaft mounted for rotation in the casing, a flanged bushing slidably mounted on the shaft, a disk loosely mounted on the bushing and havin operative connection with t e engine car uretor throttle arm, a m plurality of rigid strips disposed longitudinall on diametrically opposite sides of the sha for lon 'tudinal movement thereon and detachably c amped at one end, to the bushing, and s d responsive means mounted on the shaft or shiftmithe strips, bushing and the disk longitudina y in a manner to actuate the carburetor throttle arm.

In testimony whereof I aflix my si ature.

FREDRIGH WELL TZ. 

